Avalanche Forecast
Issued: Jan 9th, 2012 8:20AM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good - -1
Weather Forecast
A ridge of high pressure sets up over this region for Tuesday and Wednesday, bringing dry, clear weather. Treeline temperatures will hover around -8 to -10C. Winds should be generally light from the north. On Thursday, clouds will start to build ahead of a relatively weak frontal system, winds will shift round to the west and temperatures will increase to around -2C. Flurries are possible, more likely it will stay dry.
Avalanche Summary
No avalanches have been reported recently from this region.
Snowpack Summary
The upper snowpack comprises a series of storm snow layers, which have generally bonded well to each other and are now gaining strength. Rain to approximately 1800 m has left behind a moist surface layer--expect this to freeze into a crust as temperatures start to fall. In the alpine, above the elevation where rain fell, significant new wind slabs have developed in response to very strong southwesterly winds. Concern for lower snowpack layers remains only in low snowpack areas, such as the east side of the Duffy or in the Chilcotins. Surface hoar and/or facets associated with a crust from mid-December and/or sugary facets at the base of the snowpack could be a concern in sheltered treeline areas that are unusually shallow or on slopes where you can see rocks poking up out of the snow.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 10th, 2012 8:00AM